tranny upgrade

I am looking to do some serious performance upgrades to my maxima including an engine rebuild with a performance kit with a turbo and nos. I am looking to put some serious hp into my car and that means I need a huge tranny upgrade. My question is are there any transmissions that will bolt right onto my car that will handle a lot of hp? I'm looking for something that cam hamdle somewhere around 500-600 hp. It must be manual.